<!DOCTYPE html>
<html>
    <head>
        <style>
            a:link, a:visited {
              text-decoration: underline;
              color: #6A5ACD;
              background-color: transparent;
            }
            a:hover, a:active {
              text-decoration: underline overline;
              color: #191970;
              background-color: #C9C3ED;
            }
        </style> 
        <meta charset="utf-8">
        <title>title</title>
    </head>
    <!--不支持text颜色属性-->
    <!-- <body style="color:blue;"> -->
    <!-- <body style="background-color:powderblue;"> -->
    <!-- <body style="background-image:url(img/test.jpg);"> -->
    <body topmargin="100" leftmargin="100">
        <a href="https://cn.bing.com/">必应</a>
        <p>niha</p>
    </body>
</html>